100121220210202 has 64 divisors (see below), whose sum is σ = 153342566657280. Its totient is φ = 49020739456000.

The previous prime is 100121220210199. The next prime is 100121220210203. The reversal of 100121220210202 is 202012022121001.

It is a happy number.

It is a super-2 number, since 2×100121220210202² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100121220210203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15986140923 + ... + 15986147185.

It is an arithmetic number, because the mean of its divisors is an integer number (2395977604020).

Almost surely, 2^{100121220210202} is an apocalyptic number.

100121220210202 is a deficient number, since it is larger than the sum of its proper divisors (53221346447078).

100121220210202 is a wasteful number, since it uses less digits than its factorization.

100121220210202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8439.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100121220210202 its reverse (202012022121001), we get a palindrome (302133242331203).

The spelling of 100121220210202 in words is "one hundred trillion, one hundred twenty-one billion, two hundred twenty million, two hundred ten thousand, two hundred two".